In my experience, to get good results in motorsports, it takes a large amount of brains and bravery in equal parts. The women I see racing at my track usually lack bravery, the self preservation instinct is just too great. Once in a while we get a female who is fearless but she is rarely smart enough to pull off the moves she is attempting. Most guys have plenty of bravery, they plant that gas pedal firmly to the floor and hold there until impact is imminent. The smart ones figure out what works and what doesn't and lap times improve. We have a joke at Speedworld, and there's a lot of truth in it: "guys crash because they refuse to use the brakes, girls crash because they can't find the brakes".
It's complicated for me to comment on this, due to gender identity being assumed to be binary... however, for the sake of clarity on the position I comment from, I'm female bodied, but view myself as male.
I on the whole find this to be fairly accurate. Females are far more often timid than not. When they're not timid, they are blindingly quick.
I did a little bit of karting in my younger years, and was very interested in being a pro racing driver. I was quick. Very quick. I did crash a few times, and in hindsight, I think my problem was trying to chase down the drivers ahead of me and coming unstuck because I got too focused on the distance between us, and didn't focus enough on actually driving.
I got a bit too aggressive, and binned it, on more than one occasion. Didn't really learn my lesson though, and went on to do that more than once. However, binning it didn't stop me getting back in the kart next time.
And I think that's where self-preservation instinct really bites a lot of drivers, male and female. After a crash, do you have the courage to get back in the kart and not lose your confidence, and thus, your speed?
I think a lot of people fuss more over a hurt female, regardless of the sport, and that might actually be contributing to them never really getting their confidence back. Because people fuss, and a big deal is made of even the smallest accident, it may be that their perception of the danger of racing is higher than a male driver. They're also molly-coddled, and cautioned to take it easy, when really they probably need a kick in the pants and to be told to suck it up.